Theory

CH21 - ELECTRONICS

(a) (i) State what is meant by rectification of an alternating voltage...................................................................................

2024 Winter

4

Theory

CH21 - ELECTRONICS

(a) (i) State what is meant by rectification of an alternating voltage...................................................................................

2024 Winter

4

Theory

CH21 - ELECTRONICS

(a) State what is meant by the de Broglie wavelength.....................................................................................................

2023 Summer

4

Theory

CH21 - ELECTRONICS

(a) State what is meant by the de Broglie wavelength.....................................................................................................

2023 Summer

6

Theory

CH21 - ELECTRONICS

(a) State two properties of an ideal operational amplifier (op-amp).1. ..................................................................................

2021 Winter

3

Theory

CH21 - ELECTRONICS

(a) An operational amplifier (op-amp) has two input terminals and one output terminal.State what is meant by the gain of an op-amp.......................

2021 Winter

4

Theory

CH21 - ELECTRONICS

(a) Two properties of an ideal operational amplifier (op-amp) are infinite input impedance and infinite bandwidth.State what is meant by:(i) infinite ...

2021 Summer

5

Theory

CH21 - ELECTRONICS

(a) State two properties of an ideal operational amplifier (op-amp).1. ..................................................................................

2021 Winter

4

Theory

CH21 - ELECTRONICS

The output of a microphone is processed using a non-inverting amplifier. The amplifier incorporates an operational amplifier (op-amp).(a) State, by re...

2020 Summer

5

Theory

CH21 - ELECTRONICS

An ideal operational amplifier (op-amp) is to be used in a comparator circuit. Part of the comparator circuit is shown in Fig. 7.1. [Image_1: Fig. 7.1...

2020 Winter

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the mass of a raindrop?

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

Which quantity is a scalar?

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

A galvanometer of resistance 5\(\Omega\) is to be used in a null method.In order to protect the galvanometer from damage due to an excessive initial c...

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

Readings are made of the current $I$ for different voltages $V$ across a fixed resistor. The results are plotted on a graph to show the variation of $...

2020 Summer

3

MCQ

CH3 - KINEMATICS

A stone is dropped from a height of 20 m above water. The graph shows the variation with time of the velocity of the stone. Which statement describ...

2020 Summer

2

MCQ

CH3 - KINEMATICS

A car X is travelling at a constant speed $u$ along a straight road. At time $t = 0$ a second car Y is a distance $d_0$ behind car X and travelling at...

2020 Summer

4

MCQ

CH4 - DYNAMICS

The resultant force acting on an object is slowly increased. Which graph could show the variation with time $t$ of the momentum $p$ of the object?&nb...

2020 Summer

1

MCQ

CH4 - DYNAMICS

An astronaut has a weight of 660 N when she is standing on the Earth's surface. The acceleration of free fall on the surface of Mars is $3.71 \, \tex...

2020 Summer

3

MCQ

CH4 - DYNAMICS

A mass $m_1$ travelling with speed $u_1$ collides with a mass $m_2$ travelling with speed $u_2$ in the same direction. After the collision, mass $m_1$...

2020 Summer

3

MCQ

CH4 - DYNAMICS

The diagrams show a negative electric charge situated in a uniform electric field and a mass situated in a uniform gravitational field. Which row s...

2020 Summer

2